Nasal guard.



J. W. REDDY.

NASAL GUARD.

APPLICATION FILED mm: 7, 1912.

1 9 1 a Patented Nov. 19, 1912.

orator...

JOHN w. nnnnY, or GENEVA, saw Yonx.

NAsAL GUARD.

I Specification of Letters lPatent.

Patented Ndv. 19, 1912.

Application filed June 7, 1912. .Serial No. 702,370.

To all whom it may concern:

Be it known that I, JOHN W. REDDY, of (reneva, in the county of Ontario,in the State of New York, have invented new and useful improvements inNasal Guards, of which the following, taken in connection with theaccompanying drawings, is a full, clear, and exact description.

This invention relates to nasal guards and pertains more particularly tothat class of nasal guards comprising two elliptical sections adapted tobe inserted in the nostrils and connected by a yoke or any resilientstrip of material.

Nasal guards of this kind are particularly useful in factories,foundries and machine shops, where the air is heavily laden with dust,and especially when the dust is comprised of metal or emery particles inurious to the human system, to prevent the inhalation of the foreignmatter suspended in the air. and likewise inhaling hay fever germs.

The object of my invention is to produce a nasal guard which shall be.of inexpensive and simple construction, adapted to be readily takenapart to be cleaned, and in which the only destructible part is readilyremoved and replaced and firmly held in position by the tension of asurrounding rim.

A further object is to reduce to a minimum the liability of the guardbecoming clogged by the dust and dirt.

Having the above objects and uses in mind, my invention consists 1n thenew and novel features of construction hereinafter described inconnection with the accompanying drawings, forming a part thereof, inwhich Figure l is a top plan View of my nasal guard. Fig. 2 is a crosssection upon line 22, Fig. 1. Fig. 3 is a view of the blank from whichmy nasal guard is formed. Fig. 4 is an'enlarged detail view showing oneof the air passages and the projecting flanges 8 formed around the edgethereof.

1 is a frame preferably as shown in Fig. 3, pressed from a single stripof metal and adapted to form the elliptical rings 2, split upon one sideand having the ends 3 and 4-- turned in and bifurcated. The rings 2-have other integral projections as 5-, bent so that they extend radiallyof the ring.

By slightly spreading the ring -2 the plate 6, having upon one side acovering of gauze material 7-, is readily placed in the ring and betweenthe bifurcated portions of the ends, the edge of the gauze7- being heldfirmly between. the plate 6 and the ring 2.

The projections -5- and the bifurcated portions of the ends -3 and A--hold the plate 6 and the .gauze -7 with which it is covered firmlywithin the ring 2. The plates 6 are each provided with a plurality ofopenings -9, punched through from one side to form a projecting rim -8around each opening. The plates 6- are then placed in the rings '-2- sothat these projections are upon the lower side when the device is inoperable position, and upon this lower side is placed the gauze covering7--. This projecting rim -8 holds the gauze from contact with the plates6- and prevents clogging of the guard.

The rings -2 are connected by a yoke 10- preferably formed integraltherewith but it is readily apparent that it may be formed separate fromthe rings and connected thereto in any suitable manner withoutdepartingfrom the spirit of my inven tion.

What I claim is:

1. A nasal guard comprising two resilient split rings connected by ayoke, lateral projections on said rings, a perforated plate adapted tofit in each of said rings and a dust intercepting material covering eachof said plates and extending between the edge of the plate and thesurrounding ring and held therein by the lateral projections on saidring.

2. A nasal guard comprising two resilient split rings connected by ayoke, lateral projections on said rings, a perforated plate positionedin each of said rings, gauzematerial covering each of said perforatedplates and retained in engagement with the lateral projections by thetension of the surrounding ring.

3. A nasal guard comprising two elliptical rings connected by a yoke,each of said rings split across one side and the ends adjacent the splitinturned and bifurcated, integral projections on said rings, aperforated plate in each of said rings and lying between the projectionsformed by the bifurcated ends and held in place by the projections onthe rings.

4. A nasal guard comprising'rings connected' by a yoke, a plate havingopenings therethrough positioned in each of said rings, projectingflanges around each of said openings upon one side 'of said plate, and agauze material lying on said projecting flanges and held in placebetween the plate and the ring. 5. A nasal guard comprising a frame, aperforated plate operably held in the frame, projecting flanges aroundthe perforations upon one side thereof and a gauze material operablypositioned over said openings. 6. 'In a nasal guard, a plate having aplurality of openings therethrough, projecting flanges around saidopenings upon one side of the plate and a dust intercepting materialresting upon said flangesand covering the 15 openings.

7. nasal guard, comprising resilient split rings, ends adjacent thesplit inturned and bifurcated and a plate positioned in, each of saidrings and between the bifur- 2 cated portions of the ends. a

In 'witnesswhereof I have hereunto set my hand on this 27th day of May1912.

.JOHN W. REDDY.

Witnesses: I

J. G. FAIRWELL, v r I. V. TRAINOR.

